Spiral welded pombi For Underground Natural Gas Line
Spiral welded pombizvakakosha muindasitiri, kunyanya mukuvaka kwemafuta uye gasi kutapurirana mapaipi.Matauriro avo anoratidzirwa mudhayamita yekunze uye ukobvu hwemadziro, zvichiratidza kuchinjika kwavo uye kuchinjika kune zvakasiyana-siyana zvepombi zvinodiwa.
| Standard | Simbi giredhi | Kemikari yakagadzirwa | Tensile properties | Charpy Impact Muedzo uye Drop Weight Tear Test | ||||||||||||||
| C | Si | Mn | P | S | V | Nb | Ti | CEV4) (%) | Rt0.5 Mpa Goho simba | Rm Mpa Tensile Simba | Rt0.5/ Rm | （L0=5.65 √ S0 ）Elongation A% | ||||||
| max | max | max | max | max | max | max | max | Zvimwe | max | min | max | min | max | max | min | |||
| L245MB | 0.22 | 0.45 | 1.2 | 0.025 | 0.15 | 0.05 | 0.05 | 0.04 | 1) | 0.4 | 245 | 450 | 415 | 760 | 0.93 | 22 | Charpy impact bvunzo: Impact inotora simba repombi muviri uye weld musono uchayedzwa sezvinodiwa muyero yekutanga.Kuti uwane rumwe ruzivo, ona yekutanga mwero.Drop weight tear test: Optional shearing area | |
| GB/T9711-2011 (PSL2) | L290MB | 0.22 | 0.45 | 1.3 | 0.025 | 0.015 | 0.05 | 0.05 | 0.04 | 1) | 0.4 | 290 | 495 | 415 | 21 | |||
| L320MB | 0.22 | 0.45 | 1.3 | 0.025 | 0.015 | 0.05 | 0.05 | 0.04 | 1) | 0.41 | 320 | 500 | 430 | 21 | ||||
| L360MB | 0.22 | 0.45 | 1.4 | 0.025 | 0.015 | 1) | 0.41 | 360 | 530 | 460 | 20 | |||||||
| L390MB | 0.22 | 0.45 | 1.4 | 0.025 | 0.15 | 1) | 0.41 | 390 | 545 | 490 | 20 | |||||||
| L415MB | 0.12 | 0.45 | 1.6 | 0.025 | 0.015 | 1)2)3 | 0.42 | 415 | 565 | 520 | 18 | |||||||
| L450MB | 0.12 | 0.45 | 1.6 | 0.025 | 0.015 | 1)2)3 | 0.43 | 450 | 600 | 535 | 18 | |||||||
| L485MB | 0.12 | 0.45 | 1.7 | 0.025 | 0.015 | 1)2)3 | 0.43 | 485 | 635 | 570 | 18 | |||||||
| L555MB | 0.12 | 0.45 | 1.85 | 0.025 | 0.015 | 1)2)3 | Kukurukurirana | 555 | 705 | 625 | 825 | 0.95 | 18 | |||||
| Cherechedza: | ||||||||||||||||||
| 1）0.015 ≤ Altot ＜ 0.060;N ≤ 0.012;AI—N ≥ 2—1;Cu ≤ 0.25;Ni ≤ 0.30;Cr ≤ 0.30;Mo ≤ 0.10; | ||||||||||||||||||
| 2）V+Nb+Ti ≤ 0.015% | ||||||||||||||||||
| 3) Kune ese magiredhi esimbi, Mo anogona ≤ 0.35%, pasi pechibvumirano. | ||||||||||||||||||
| 4）CEV=C+ Mn/6 + (Cr+Mo+V)/5 + (Cu+Ni)/5 | ||||||||||||||||||
Iyo nzira yekugadzira ye spiral welded pombi inosanganisira kushandiswa kweyepamusoro pombi welding tekinoroji, kugadzira imwe- kana kaviri-sided welded pombi.Aya mawelding maitiro anovimbisa kusimba kwakanyanya uye kuvimbika kwepombi, inokwanisa kumirisana nekuoma kwepasi pevhu gasi rechisikigo mutsetsekutapurirana.
Panzvimbo yedu yekugadzira, isu tinovimbisa kuti spiral welded pombi dzedu dzinoedzwa dzakaomesesa simbisiro yemhando kuti ive nechokwadi chekuita kwavo kwepamusoro.Izvo zvakakosha kuti welded pombi inosangana nemirairo ye hydraulic test, tensile simba uye inotonhora yekukotama zvivakwa.
Yedu spiral welded pombi dzakagadzirirwa kudarika zviyero zveindasitiri uye kusangana nezvinoomesesa zvinodiwa zvepasi pevhu gasi rechisikigo mutsara wekufambisa masisitimu.Izvo zvakagadzirirwa kumira zvakasiyana-siyana zvezvakatipoteredza mamiriro, kuve nechokwadi chekugara kwenguva refu uye kuchengetedzeka mune chero application.
Iko kushandiswa kwe spiral welded pombi mupasi pevhu gasi mutsara wekutakura masisitimu inopa inoshanda uye inoshanda nzira yekutakura gasi rechisikigo.Iko kusimba kwemukati kwekuvakwa kwespiral-welded kunovimbisa kuburitswa kwegasi uye kuderedza njodzi yekuvuza kana kuora nekufamba kwenguva, ichipa runyararo rwepfungwa kune vanoshanda nevashandisi vekupedzisira.
Takazvipira kupa vatengi vedu zvigadzirwa zvemhando yepamusoro, uye mapaipi edu espiral welded chiratidzo chekuzvipira kwedu kune indasitiri yakanaka.Isu tinotungamira kusimba, kuita uye kuchengetedzeka kwezvigadzirwa zvedu, tichiona kuti zvinosangana uye nekupfuura zvakaomesesa zvinodiwa zvepasi pevhu gasi rechisikigo mutsara wekufambisa masisitimu.
Muchidimbu, yedu spiral welded pombi chinhu chakakosha mukuvaka uye kugadzirisa epasi pevhu gasi rechisikigo nzira dzekufambisa.Nekuvaka kwayo kwepamusoro, kutevedzera zviyero zveindasitiri, uye kuzvipira kusingazungunuke kune mhando, yedu spiral welded pombi yakanakira chero purojekiti yekufambisa gasi.Batana nesu kuti tipe iyo yepamusoro mhando spiral welded pombi kune yako yepasi pevhu gasi echisikigo pombi kutapurirana zvinodiwa.
